/**
 * number string boolean null undefined
 * Array Object Function
 */
var num = 10;
var str = 'hello';
var b = true;
var arr = ['html', 'css', 'js'];
var arr2 = [1, 2, 3];
var obj = {
    name: "lisi",
    age: 20
};
function go() {
    console.log("go");
}
function show(val) {
    return val;
}
function http(method) {
    if (method === void 0) { method = "get"; }
    console.log(method);
}
http();
http('post');
function getInfo(name, age) {
    console.log(name, age);
}
getInfo("lisi");
getInfo("lisi", 19);
